Measurement of the top quark mass with lepton+jets final states using pp pp collisions at s√=13TeV
| Parent link: | The European Physical Journal C: Scientific Journal Vol. 78, iss. 11.— 2018.— [891, 27 р.,] |
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| Other Authors: | , , , , , , |
| Summary: | Title screen The mass of the top quark is measured using a sample of tt¯tt¯ events collected by the CMS detector using proton-proton collisions at s√=13s=13 TeVTeV at the CERN LHC. Events are selected with one isolated muon or electron and at least four jets from data corresponding to an integrated luminosity of 35.9fb−1fb−1. For each event the mass is reconstructed from a kinematic fit of the decay products to a tt¯tt¯ hypothesis. Using the ideogram method, the top quark mass is determined simultaneously with an overall jet energy scale factor (JSF), constrained by the mass of the W boson in qq¯¯¯′qq¯′ decays. The measurement is calibrated on samples simulated at next-to-leading order matched to a leading-order parton shower. The top quark mass is found to be 172.25±0.08(stat+JSF)±0.62(syst)GeV172.25±0.08(stat+JSF)±0.62(syst)GeV. The dependence of this result on the kinematic properties of the event is studied and compared to predictions of different models of tt¯tt¯ production, and no indications of a bias in the measurements are observed. |
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2018
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| Online Access: | https://doi.org/10.1140/epjc/s10052-018-6332-9 |
| Format: | Electronic Book Chapter |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=660788 |